Xpeditions
Grades: K 12. National Geographic's Xpeditions is an enormous
and varied resource for studying the earth and its people. Of particular
interest is a 3-D virtual version of the Society's Explorer's Hall,
located in Washington, D.C. Users can navigate the virtual museum
to visit its many online science exhibits.
Chandra
X-Ray Observatory Center
N ASA's Chandra X-ray Observatory, which was launched and deployed
by Space Shuttle Columbia in July of 1999, is the most sophisticated
X-ray observatory built to date. Chandra is designed to observe
X-rays from high energy regions of the universe, such as the remnants
of exploded stars.
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